Electromagnetic operator



3nventor: 'W/LL/AM A. RA Y.

Gttomeg.

W. RAY

ELECTROMAGNETIC OPERATOR Original Filed Nov. 6, 1939 April 30, 1946.

Patented Apr. 30, 1946 UNITED STATE ELECTROMAGNETIC oraaa'ron William A.Ray, Los Angeles, Calif., assignor to v General Controls 00., acorporation Original application November 6, 1939, Serial No.

303,093, now Patent No. 2,303,066, dated November 24, 1942. Divided andthis application November 9, 1942, Serial No. 464,968

This invention relates to receptacles for the i Claim.

coil windings of electrically operated valves of the type wherein thewinding is so located that normally it is subjected to the fluidcontrolled by the valve. The present application is a division of mycopending'application, Serial No. 303,093, filed November 6, 1939; nowPatent No. 2,303,066, dated November 24, 1942.

An object of the invention is to provide a, receptacle, of the characterdescribed, which is so fabricated that it sealingly encompasses theperimeter of the coil winding and thus shields it from the fluid.

Another object is to provide a receptacle, of the character described inthe preceding object,

having a tubular extension for the leads of the.

coil winding.

Another object is to provide means whereby the receptacle can readily beremoved from, and replaced in, the valve.

Other objects and advantages of the invention will be found in thedescription, the drawing, and in the claims; and for full understandingof the invention, reference may be had to the folowing detaileddescription and accompanying drawing, the single figure of which is asectional view of a valve embodying my invention.

In the drawing, the numeral 3| indicates avalve casing having an inlet32 and an outlet 33 separated by a partition 34, wherein is threaded avalve seat member 35. This valve seat member is provided with a centralrecess 36 and an annular recess 31 to form concentric inner and outervalve seats 38 and 39, respectively. Connecting the recess 31 with theoutlet 33 are openings 40.

Cooperable with the valve seats 33 and 33 is a valve member 4|comprising a cylindrical shell of magnetic material having a closed topwall 42 and a marginal bottom wall 43, the latter wall beingconveniently so formed by spinning, or in a punch press by the aid of acollapsible die.

Openings 44 are provided in the lower portion of the side wall of theshell which permit fluid communication between the inlet 32 and the areaadjacent the inner valve seat 33. It will thus be seen that, when theshell is raised by electromagnetic means hereinafter to be described,fluid can flowfrom the inlet, across the inner and outer seats 38 and33, into the recess 31 and thence through the openings 40 into theoutlet 33. The double-seat arrangement permits increased flow throughthe valve when the lift of the valve. member is relatively small, and isthe subject of U. S. PatentNo. 2,261,562, issuedto me November 4, 1941.

An upper extension 45 of the casing provides an opening for thereception of a housing 43, of magnetic material. This housing is securedin the casing by a ring 41, brazed or welded to the housing, which isclamped to the upper surface of the casing extension by a threadedcollar 43. Shims 49 are provided between the ring and the casing wherebythe vertical position of the housing with respect to the casing can beadjusted.

The valve member ll "is arranged to be freely slidable in the lower endof the housing and the circumferential surface of the valve member ispreferably plated with a durable non-magnetic metal to provide a minuteair gap between this surface and the housing. The valve member is biasedtoward seating position by a weight 54.

Secured to the underside of the top wall 50 of the housing 46, by ascrew 5|, is a cylindrical core member 52. Surrounding the core memberis an annular receptacle. for a coil winding 53 having connection leads54. Upon passage of current through the coil winding, the valve member4| is attracted into engagement with the core member 52. v

The receptacle 55 has an inner 56 andan outer 51 cylindrical side wall,and a bottom 58 and a top 53 end wall, each sealingly secured to theside walls. A tubular member 60, secured in the top wall 59 of thereceptacle, and extending through only by the scope of the appendedclaim.

I claim as my invention: In a solenoid operator: a tubular housing openat one end and closed at-its other end by a wall,

said housing being adapted for mounting by said open end on a device tobe operated; a hollow coil winding having leads for connection to asource of electrical energy; a receptacle sealingly encompassing saidcoil winding and insertable through said open end of the housing, saidreceptacle comprising an inner and an outer spaced tubular portion andcooperating end portions; and means sealingly joined to the inner one ofsaid end portions of the receptacle and extending through an'opening insaid end wall of the housing for removably mounting the receptacle in*the housing, said mounting means comprising a tube communicating withthe interior of the receptacle and forming a duct for said coil-windingleads.

